Idaho earthquakes

M2.3 earthquake 16 km NNE of Challis, Idaho

A magnitude 2.3 earthquake struck 16 km NNE of Challis, Idaho on Fri, Feb 26, 2016, 11:53 PM MST (06:53 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.6 15 km NE of Challis, Idaho. This one was a foreshock.

Challis forecastMore in Idaho

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.3 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2016-02-27 06:53:48 UTC
Depth
5.7 km (3.5 mi), shallow
Epicenter
44.637° N, 114.129° W
Region
Idaho
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 1.8 km horizontally, 3.2 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
100°
Stations used
10

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 29 in the 60 days after this one and 30 in the 30 days before it.

After

  1. 3.615 km NE of Challis, Idaho · 3869 days ago · 7 km deep · 2 km away · felt by 9
  2. 1.722 km WNW of Challis, Idaho · 3869 days ago · 5 km deep · 32 km away
  3. 2.114 km NE of Challis, Idaho · 3869 days ago · 5 km deep · 4 km away
  4. 1.622 km WNW of Challis, Idaho · 3868 days ago · 4 km deep · 31 km away
  5. 2.122 km W of Challis, Idaho · 3867 days ago · 5 km deep · 32 km away
  6. 1.724 km WNW of Challis, Idaho · 3867 days ago · 8 km deep · 33 km away
  7. 1.623 km W of Challis, Idaho · 3867 days ago · 2 km deep · 33 km away
  8. 1.714 km NE of Challis, Idaho · 3867 days ago · -2 km deep · 4 km away
  9. 2.223 km WNW of Challis, Idaho · 3867 days ago · 7 km deep · 32 km away
  10. 2.013 km SE of Challis, Idaho · 3867 days ago · 5 km deep · 23 km away
  11. 1.622 km WNW of Challis, Idaho · 3866 days ago · 7 km deep · 30 km away
  12. 1.514 km W of Clayton, Idaho · 3866 days ago · 6 km deep · 56 km away
  13. 2.523 km W of Challis, Idaho · 3864 days ago · 1 km deep · 33 km away
  14. 1.714 km NE of Challis, Idaho · 3863 days ago · 5 km deep · 6 km away
  15. 1.822 km W of Challis, Idaho · 3860 days ago · 4 km deep · 32 km away
  16. 2.614 km NE of Challis, Idaho · 3855 days ago · 10 km deep · 4 km away
  17. 1.8southern Idaho · 3855 days ago · 7 km deep · 15 km away
  18. 1.525 km SE of Challis, Idaho · 3854 days ago · 5 km deep · 33 km away
  19. 2.2southern Idaho · 3854 days ago · 9 km deep · 5 km away
  20. 1.622 km WNW of Challis, Idaho · 3851 days ago · 3 km deep · 31 km away
  21. 1.917 km NNE of Challis, Idaho · 3850 days ago · 5 km deep · 1 km away · felt by 1
  22. 1.622 km WNW of Challis, Idaho · 3848 days ago · 5 km deep · 31 km away
  23. 1.639 km NNE of Leadore, Idaho · 3848 days ago · 5 km deep · 88 km away
  24. 1.510 km SE of Challis, Idaho · 3844 days ago · 5 km deep · 22 km away
  25. 1.629 km E of Clayton, Idaho · 3841 days ago · 5 km deep · 46 km away
  26. 1.722 km WNW of Challis, Idaho · 3841 days ago · 6 km deep · 32 km away
  27. 1.919 km NE of Challis, Idaho · 3834 days ago · 7 km deep · 5 km away
  28. 1.514 km NE of Challis, Idaho · 3818 days ago · 6 km deep · 4 km away
  29. 1.64 km NW of Challis, Idaho · 3814 days ago · 7 km deep · 17 km away

Before

  1. 2.022 km WNW of Challis, Idaho · 3871 days ago · 7 km deep · 32 km away
  2. 1.821 km W of Challis, Idaho · 3871 days ago · 3 km deep · 31 km away
  3. 3.314 km NNE of Challis, Idaho · 3871 days ago · 6 km deep · 2 km away · felt by 1
  4. 3.223 km WNW of Challis, Idaho · 3871 days ago · 7 km deep · 32 km away
  5. 1.823 km WNW of Challis, Idaho · 3873 days ago · 5 km deep · 32 km away
  6. 1.722 km WNW of Challis, Idaho · 3875 days ago · 7 km deep · 30 km away
  7. 2.223 km WNW of Challis, ID · 3875 days ago · 6 km deep · 32 km away
  8. 1.622 km W of Challis, Idaho · 3875 days ago · 5 km deep · 32 km away
  9. 1.914 km SE of Challis, Idaho · 3880 days ago · 7 km deep · 25 km away
  10. 1.512 km SE of Challis, Idaho · 3882 days ago · 6 km deep · 23 km away
  11. 1.810 km NW of Challis, Idaho · 3882 days ago · -1 km deep · 18 km away
  12. 1.920 km SE of Challis, Idaho · 3883 days ago · 3 km deep · 30 km away
  13. 1.512 km SE of Challis, Idaho · 3884 days ago · 6 km deep · 23 km away
  14. 2.212 km SE of Challis, Idaho · 3887 days ago · 8 km deep · 23 km away
  15. 1.813 km SE of Challis, Idaho · 3888 days ago · 7 km deep · 24 km away
  16. 2.315 km W of Clayton, Idaho · 3888 days ago · 8 km deep · 55 km away
  17. 1.822 km WNW of Challis, Idaho · 3894 days ago · 6 km deep · 32 km away
  18. 1.622 km WNW of Challis, Idaho · 3894 days ago · 5 km deep · 32 km away
  19. 1.819 km SE of Challis, Idaho · 3894 days ago · 2 km deep · 28 km away
  20. 2.32 km NNW of Challis, Idaho · 3896 days ago · 8 km deep · 16 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80126759. Read Thu, Oct 1, 2026, 10:47 PM UTC.